jinhai created SPARK-36855:
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Summary: Uniformly execute the
mergeContinuousShuffleBlockIdsIfNeeded method first
Key: SPARK-36855
URL: https://issues.apache.org/jira/browse/SPARK-36855
Project: Spark
Issue Type: Improvement
Components: Spark Core
Affects Versions: 3.1.2, 3.1.1, 3.1.0
Reporter: jinhai
In the ShuffleBlockFetcherIterator.partitionBlocksByFetchMode method, both
local and host-local execute the mergeContinuousShuffleBlockIdsIfNeeded method
first, but remote blocks executes the mergeContinuousShuffleBlockIdsIfNeeded
method many times in the createFetchRequests method. Can merge blocks be
executed only once in advance?
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